.article-page{--red:#b5121b;--ink:#181b22;--muted:#667085;--line:#e4e7ec;padding:16px 0 68px;background:#fff}.article-page a{color:inherit;text-decoration:none}.article-page img{display:block;max-width:100%;height:auto}.article-breadcrumb{display:flex;align-items:center;gap:9px;margin:5px 0 26px;color:#858b96;font-size:13px}.article-breadcrumb a:hover{color:var(--red)}.article-layout{display:grid;grid-template-columns:minmax(0,800px) 310px;justify-content:space-between;gap:58px;align-items:start}.article-main{min-width:0}.article-category{display:inline-flex;margin-bottom:13px;color:var(--red)!important;font-size:13px;font-weight:900;letter-spacing:.07em;text-transform:uppercase}.article-header h1{margin:0;color:var(--ink);font-family:Georgia,"Times New Roman",serif;font-size:clamp(38px,5vw,58px);line-height:1.12;letter-spacing:-.025em}.article-sapo{margin:20px 0 0;color:#3f4754;font-family:Georgia,"Times New Roman",serif;font-size:20px;font-weight:700;line-height:1.55}.article-information{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:23px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.article-author{display:flex;align-items:center;gap:11px}.article-author__avatar,.article-author-box__avatar,.comment-item__avatar{display:grid;place-items:center;flex:0 0 auto;border-radius:50%;background:#f9e7e9;color:var(--red);font-weight:900}.article-author__avatar{width:40px;height:40px}.article-author strong{display:block;font-size:14px}.article-author div div{display:flex;flex-wrap:wrap;gap:6px;margin-top:3px;color:#8b919c;font-size:12px}.article-actions{display:flex;gap:7px}.article-actions a,.article-actions button{display:grid;width:37px;height:37px;place-items:center;border:1px solid #d7dbe2;border-radius:50%;background:#fff;color:#344054;font:inherit;font-weight:800;cursor:pointer}.article-actions a:hover,.article-actions button:hover{border-color:var(--red);color:var(--red)}.article-cover{margin:25px 0 0}.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#f2f4f7}.article-cover figcaption{padding:9px 0;color:#7f8691;font-size:12px}.article-content{margin-top:28px;color:#252a32;font-size:18px;line-height:1.82}.article-content p{margin:0 0 24px}.article-content h2,.article-content h3{margin:36px 0 15px;color:var(--ink);font-family:Georgia,"Times New Roman",serif;line-height:1.28}.article-content h2{font-size:29px}.article-content h3{font-size:24px}.article-content img{width:auto;max-width:100%;margin:25px auto 8px}.article-content figure{margin:28px 0}.article-content figcaption{color:#7f8691;font-size:13px;text-align:center}.article-content blockquote{margin:28px 0;padding:19px 23px;border-left:4px solid var(--red);background:#f7f8fa;font-family:Georgia,"Times New Roman",serif;font-size:20px;font-style:italic}.article-content a{color:#175cd3;text-decoration:underline}.article-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.article-content th,.article-content td{padding:10px;border:1px solid var(--line)}.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:30px;padding-top:19px;border-top:1px solid var(--line)}.article-tags span{padding:6px 10px;border-radius:999px;background:#f2f4f7;color:#475467;font-size:12px}.article-author-box{display:grid;grid-template-columns:64px 1fr;gap:15px;margin-top:30px;padding:23px;border:1px solid var(--line);background:#fafafa}.article-author-box__avatar{width:64px;height:64px;font-size:24px}.article-author-box span{color:var(--red);font-size:11px;font-weight:900;text-transform:uppercase}.article-author-box h2{margin:2px 0 4px;font-size:20px}.article-author-box p{margin:0;color:var(--muted);font-size:13px}.related-section,.comments-section{margin-top:45px}.article-section-heading{padding-bottom:13px;border-bottom:3px solid var(--ink)}.article-section-heading>span{display:block;margin-bottom:3px;color:var(--red);font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.article-section-heading h2{margin:0;font-family:Georgia,"Times New Roman",serif;font-size:29px}.article-section-heading small{display:inline-grid;min-width:25px;height:25px;margin-left:5px;place-items:center;border-radius:50%;background:#f2f4f7;font:700 12px Arial}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px 17px;margin-top:21px}.related-card__image{display:block;overflow:hidden}.related-card__image img{width:100%;aspect-ratio:5/3;object-fit:cover;transition:transform .3s ease}.related-card__image:hover img{transform:scale(1.025)}.related-card__body{padding-top:10px}.related-card__body>span{color:var(--red);font-size:10px;font-weight:800;text-transform:uppercase}.related-card h3{display:-webkit-box;overflow:hidden;margin:4px 0 0;font-family:Georgia,"Times New Roman",serif;font-size:17px;line-height:1.38;-webkit-box-orient:vertical;-webkit-line-clamp:3}.related-card h3 a:hover{color:var(--red)}.related-card time{display:block;margin-top:8px;color:#9298a3;font-size:11px}.article-sidebar{position:sticky;top:82px;display:grid;gap:26px}.article-sidebar-box{padding-top:17px;border-top:3px solid var(--red)}.article-sidebar-heading>span{color:var(--red);font-size:11px;font-weight:900;text-transform:uppercase}.article-sidebar-heading h2{margin:2px 0 10px;font-family:Georgia,"Times New Roman",serif;font-size:25px}.article-ranking article{display:grid;grid-template-columns:42px 1fr;gap:10px;padding:14px 0;border-bottom:1px solid var(--line)}.article-ranking article>span{color:#d3d7dd;font-family:Georgia,"Times New Roman",serif;font-size:28px;font-weight:700;line-height:1}.article-ranking h3{margin:0;font-size:14px;line-height:1.42}.article-ranking h3 a:hover{color:var(--red)}.article-ranking small{display:block;margin-top:5px;color:#969ca6}.article-sidebar-newsletter{padding:23px;background:#f3f4f6}.article-sidebar-newsletter>span{display:grid;width:36px;height:36px;place-items:center;border-radius:50%;background:var(--red);color:#fff}.article-sidebar-newsletter h2{margin:13px 0 4px;font-family:Georgia,"Times New Roman",serif;font-size:22px}.article-sidebar-newsletter p{margin:0;color:var(--muted);font-size:13px}.article-sidebar-newsletter form{display:grid;gap:8px;margin-top:14px}.article-sidebar-newsletter input,.article-sidebar-newsletter button{height:41px;border-radius:3px;font:inherit}.article-sidebar-newsletter input{padding:0 11px;border:1px solid #d0d5dd}.article-sidebar-newsletter button{border:0;background:var(--red);color:#fff;font-weight:800;cursor:pointer}.comment-form{margin-top:21px;padding:22px;border:1px solid var(--line);background:#fafafa}.comment-form__row{display:grid;grid-template-columns:1fr 1fr;gap:13px}.comment-form label>span{display:block;margin-bottom:6px;color:#344054;font-size:12px;font-weight:800}.comment-form input,.comment-form textarea{width:100%;border:1px solid #d0d5dd;border-radius:3px;background:#fff;font:inherit}.comment-form input{height:42px;padding:0 12px}.comment-form textarea{min-height:130px;padding:11px 12px;resize:vertical}.comment-form__content{display:block;margin-top:14px}.comment-form__footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:14px}.comment-form__footer p{margin:0;color:#7d8490;font-size:12px}.comment-form__footer button{height:41px;padding:0 20px;border:0;border-radius:3px;background:var(--red);color:#fff;font:inherit;font-weight:800;cursor:pointer}.comment-honeypot{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}.comment-reply-notice{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:14px;padding:10px 12px;border-left:3px solid var(--red);background:#fff1f3;font-size:13px}.comment-reply-notice button{border:0;background:transparent;color:var(--red);font-weight:800;cursor:pointer}.comment-message{margin-top:18px;padding:13px 15px;border-radius:3px;font-size:14px}.comment-message--success{border:1px solid #abefc6;background:#ecfdf3;color:#05603a}.comment-message--error{border:1px solid #fecdca;background:#fef3f2;color:#912018}.comment-list{margin-top:23px}.comment-item{display:grid;grid-template-columns:45px 1fr;gap:13px;padding:20px 0;border-bottom:1px solid var(--line)}.comment-item__avatar{width:45px;height:45px}.comment-item__body header{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}.comment-item__body header time{color:#9298a3;font-size:11px}.comment-item__body>p{margin:8px 0 6px;color:#3e4652;font-size:14px;line-height:1.65;white-space:pre-wrap}.comment-reply-button{padding:0;border:0;background:transparent;color:var(--red);font:inherit;font-size:12px;font-weight:800;cursor:pointer}.comment-replies{margin-top:14px;padding-left:20px;border-left:2px solid #eef0f3}.comment-item--reply{padding:14px 0;border-bottom:0}.comment-item--reply .comment-item__avatar{width:37px;height:37px;font-size:12px}.comment-empty{padding:31px 10px;text-align:center;border-bottom:1px solid var(--line)}.comment-empty p{margin:5px 0 0;color:var(--muted);font-size:13px}.copy-toast{position:fixed;right:22px;bottom:22px;z-index:1000;padding:11px 15px;border-radius:5px;background:#101828;color:#fff;font-size:13px;opacity:0;pointer-events:none;transform:translateY(12px);transition:.2s}.copy-toast.is-visible{opacity:1;transform:translateY(0)}
@media(max-width:1020px){.article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:34px}}
@media(max-width:840px){.article-layout{grid-template-columns:1fr}.article-sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.article-page{padding-top:9px}.article-header h1{font-size:34px}.article-sapo{font-size:18px}.article-content{font-size:17px;line-height:1.75}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}.related-card h3{font-family:Arial,sans-serif;font-size:14px}.article-sidebar{grid-template-columns:1fr}.comment-form{padding:16px}.comment-form__row{grid-template-columns:1fr}.comment-form__footer{align-items:stretch;flex-direction:column}.comment-form__footer button{width:100%}.comment-item{grid-template-columns:38px 1fr}.comment-item__avatar{width:38px;height:38px}.comment-replies{padding-left:10px}}

/* =========================================================
   FIX HIỂN THỊ TIÊU ĐỀ TRÊN MÁY 1024px / ĐỘ PHÂN GIẢI THẤP
   ========================================================= */
.article-main,
.article-header,
.article-header h1,
.article-sapo {
    min-width: 0;
    max-width: 100%;
}

.article-header h1 {
    /* Fallback cho trình duyệt cũ không hỗ trợ clamp() */
    font-size: 52px;
    font-size: clamp(36px, 4.2vw, 56px);
    font-family: Georgia, "Times New Roman", Times, serif;
    font-weight: 700;
    line-height: 1.14;
    letter-spacing: -0.018em;
    word-break: normal;
    overflow-wrap: break-word;
    hyphens: none;
}

.article-sapo {
    overflow-wrap: break-word;
    word-break: normal;
}

/* Bố cục gốc cần khoảng 1168px, nên phải co lại trước 1024px. */
@media (max-width: 1180px) {
    .article-layout {
        grid-template-columns: minmax(0, 1fr) 280px;
        gap: 30px;
    }

    .article-header h1 {
        font-size: 46px;
    }
}

@media (max-width: 960px) {
    .article-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 34px;
    }

    .article-sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .article-header h1 {
        font-size: 42px;
    }
}

@media (max-width: 700px) {
    .article-header h1 {
        font-size: 36px;
        line-height: 1.18;
        letter-spacing: -0.01em;
    }

    .article-sapo {
        font-size: 17px;
        line-height: 1.55;
    }
}

@media (max-width: 480px) {
    .article-header h1 {
        font-size: 31px;
    }

    .article-sidebar {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   THANG CHỮ TRANG BÀI VIẾT THEO PHONG CÁCH DÂN TRÍ
   ========================================================= */
.article-header h1 {
    font-size: clamp(38px, 4vw, 48px);
    line-height: 1.16;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.article-sapo {
    font-size: 18px;
    line-height: 1.55;
    font-weight: 700;
}

.article-content {
    font-size: 18px;
    line-height: 1.76;
}

.article-content p {
    margin-bottom: 22px;
}

.article-content h2 {
    font-size: 26px;
    line-height: 1.32;
}

.article-content h3 {
    font-size: 22px;
    line-height: 1.35;
}

.article-content blockquote {
    font-size: 19px;
    line-height: 1.6;
}

.article-section-heading h2 {
    font-size: 27px;
}

.related-card h3 {
    font-size: 16px;
    line-height: 1.42;
}

.article-sidebar-heading h2 {
    font-size: 23px;
}

.article-ranking h3 {
    font-size: 14px;
    line-height: 1.45;
}

@media (max-width: 1180px) {
    .article-header h1 {
        font-size: 42px;
    }
}

@media (max-width: 960px) {
    .article-header h1 {
        font-size: 40px;
    }
}

@media (max-width: 700px) {
    .article-header h1 {
        font-size: 33px;
        line-height: 1.2;
    }

    .article-sapo {
        font-size: 17px;
        line-height: 1.55;
    }

    .article-content {
        font-size: 17px;
        line-height: 1.72;
    }

    .article-content h2 {
        font-size: 23px;
    }

    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .article-header h1 {
        font-size: 29px;
    }

    .article-content {
        font-size: 16.5px;
    }
}